Acetylene-lamp



Patented Mar. 2,1920.

INVENILORI WITNESSES UNITED STATES PATENT OFFICE.

HARRY GALL, 0F ISHPEMING, MICHIGAN.

ACETYLENE-LAMP.

Application filed December 4, 1917.

To all whom it may concern Be it known that I, HARRY GALL, a citizen ofthe United States, residing at Ishpeming, in the county of Marquette andState of Michigan, have invented certain new and useful Improvements inAcetylene- Lamps, of which the following is a specification.

This invention relates to acetylene generators, and more particularl toacetylene lamps for use by miners and others.

The object of the invention is to construct a lamp of this characterwith two independ ent gas generating chambers adaptedto supply acetylenegas to burners so that when the carbid in one chamber becomes exhaustedthe other may be brought into operation to continuously supply light,the empty chamber being filled after the;- other is in operation so thatone may be always ready for use on the exhaustion of the other.

Another object is to provide improved means for holding the water supplyvalves in open position, said holding meansbeing quickly brought intouse when desired.

With the foregoing and other objects 111 view, which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed may be made within thescope of what is claimed without departing from the spirit of theinvention.

In the accompanying drawings Figure 1 represents a front elevationpartly in section of a lamp constructed in zu'cordance with thisinvention, and

Fig. 2 represents a, transverse vertical section thereof.

In the embodiment illustrated a cylindrical receptacle 1 is shownprovided at its opposite ends with closures 2 in the form of screw capshaving gaskets; 3 arranged between said caps and the receptacle to provide a. fluid tight connection between them,

the receptacle being shown reduced at its ends with shoulders 4: formedat the inner ends or bases of said reduced ends and against which thepacking or gasket is clamped. This cylindrical receptacle 1 has apartition 5 arranged transversely thereof preferably midway its ends soas to divide the receptacle into two chambers which are designed tocontain carbid for the genera- Speciflcation of Letters Patent.

Patented Mar. 2, 1920;

Serial No. 205,402.

tion of the gas for supplying light to the lamp. These chambers 6 and 7have valved openings communicating with a water container 8 which isalso here shown cylindrical in form although obviously. it may be of anyother desired configuration. This water container or tank is providedwith a filling opening 9 in its upper wall equipped with a suitableclosure 10 and which is designed to contain the water to be supplied tothe chambers 6 and 7 for generating the acetylene gas.

Surrounding each of the openings in the chambers 6- and '7 a dependingtube as 11 through which extends a rod 12 which is movablelongitudinally in the tube 11, the upper portion of said rod extendingtransversely through the water tank 8 and surrounded by a sleeve 13which terminates at its outer end in a head 14. Coiled around the sleeve13 within the tank 8 is a spring 15 which bears at one end against theinner face of the tank and at its other end against the stop 16' carriedby the rod 12. This spring exerts its tension to normally force the roddownwardly through the tube 11 and cut off the water supply which isaccomplished by the engagement of a packing or vtlve 17 carried by therod 12.

A ferrule or sleeve 18 preferably surrounds the opening in tank 8through which the sleeve 13 passes as is shown clearly in Fig. 1 andwhich operates as a guide therefor.

A plate 19 is hinged at one end to the tank 8 adjacent the ferrule 18and is designed to be elevated and engaged with the under face of thehead 14 carried by the rod 12 for holding this rod in raised position toopen the valve between. tank 8- and the carbid chamber 7.

While one of these chambers and the water controlling valve thereforonly is described, it is to be understood that the other chamber isconstructed exactly like it.

A gas tube or chamber 20 is arranged in front of the water tank 8 andslightly above the receptacle 1, being supported on said re-' ceptacleby tubular standards 21 which also operate to afford communicationbetween the chambers 6 and 7 and the gas chamber 20 to permit the gasnerated in the chambers 6 and 7 to pass into the supply chamber 20 fromwhich it passes to the burners as 22 which project laterally from thechamber 20 and open into a reflector 23 which is bolted to the gas tubeor chamber 20 by a bolt 24 which extends centrally througih saidreflector, the burners also operating to assist in holding the reflectorin position.

The gas chamber 20 is also connected with the front of the water tank 8as shown at 25, said connection being effected by soldering or in anyother suitable manner.

A hook 26 is carried by the rear wall of the water tank 8 and isdesigned for supporting the lamp, it being ordinarily engaged with. thecap of a miner or other person using it, but obviously it may be engagedwith any other suitable support, it being not restricted in use tominers caps.

In the use of this lamp the chambers 6 and 7 having been filled withcarbid through the ends which are closed by the caps 2 and said capsplaced in operative connection therewith, the tank 8 is filled withwater through the opening 9 and the lamp is then ready for use. In orderthat gas may be generated the rod 12 is raised by lifting the head 14 atits outer end and then swinging upwardly the holder 19 into the positionshown at the right of Fig. 1. When this holder is so positioned thevalve 17 will be lifted from the opening which communicates with thechamber 7 and water from tank 8 will be allowed to flow through the tube11 downward into the chamber and onto the carbid whereby acetylene gaswill be generated within this chamber and will pass out through one ofthe tubes 21 into the chamber 20 from which it will be supplied to theburners 22. The exhaustion of the carbid in the chamber in use will beindi cated by the reduction in the size of the flame produced at theburners so that the user of the lamp will be notified in ample time tobring into operation the other gas supply chamber which is accomplishedin the same manner as that above described. The exhausted chamber maythen be refilled with carbid after first cutting off the water supplytherefrom which is accomplished by disengaging the holder 19 from thehead 14: of the valve stem which. will cause said stem to move inwardlyunder the tension of the spring 15 and the valve 17 to close, thuscutting off the water supply through the tube 11. This chamber will thenbe again ready for use and may be brought into operation when founddesirable or necessary. It 1s, of course, understood that the chamber inuse Wlll generate sufiicient gas to maintain in chamber 20 pressuresuflicient to maintain the burners lighted during the filling of theexhaust chamber which will occupy only a few minutes.

It will thus be seen that a lamp constructed as above described maycontinu ously supplyv light by utilizing first one chamber andthen theother and filling the exhausted chamber after the other has been broughtinto operation.

From the foregoing description, taken in connection with theaccompanying drawings, the advantages of the construction and of. themethod of operation will be readily apparent to those skilled in the artto which the invention appertains and while I have described theprinciple of operation of the invention together with the device which Inow consider to be the best embodiment thereof, I desire to have itunderstood that the device shown is merely illustrative and that suchchanges may be made as are within the scope of the claimed invention.

I claim I In an acetylene lamp, a cylindrical carbidcontainer-horizontally disposed and divided transversely into aplurality of compartments, a cylindrical water tank mountedlongitudinally on said container directly on the top thereof and havingopenings communicating with the compartments of said container, sleevessurrounding said openings and depending into said compartments, springpressed valves for closing said openings, stems carrying said valves andprojecting from said tank and extending through said sleeves with headson their outer ends, hinged members carried by said tank for engagingsaid heads to hold the valves in open position against the tension oftheir springs, a cylindrical gas storage chamber secured to one side ofsaid tank and arranged parallel therewith and having a burner extendinglaterally from its outer side, and diagonally disposed pipes connectingsaid chamber with the compartments of said container and operating toconduct the gas from the container to the storage chamber, and also tooperate as additional supports for the storage chamber.

In testimony whereof I aflix my signature in presence of two witnesses.

HARRY GALL.

Witnesses:

RICHARD H. OLDS, DENIS HUGHES.

